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Earnings / (Loss) per share | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Earnings / (Loss) per Share: | 10. Earnings / (Loss) per Share: The computation of basic earnings/(loss) per share is based on the weighted average number of common shares outstanding for the six-months ended June 30, 2018 and 2017. The calculation of basic earnings per share does not consider the non-vested shares as outstanding until the time-based vesting restriction has lapsed. Diluted earnings/(loss) per share gives effect to stock awards, stock options and restricted stock units using the treasury stock method, unless the impact is anti-dilutive. Diluted earnings per share for the six-months ended June 30, 2018 does not include the effect of 104,250 non-vested share options outstanding as of that date, as that effect was anti-dilutive. Diluted net loss per share for the six-months ended June 30, 2017 does not include the effect of the 1,024,000 non-vested shares and of the 104,250 non-vested share options outstanding as that date, as their effect was anti-dilutive. The Company calculates basic and diluted earnings / loss per share as follows:
|  |  | Six months ended June 30,
|  |  | 2017 |  |  | 2018
Income / (Loss) : |  |  |  |  |  |
Net income / (loss) |  | $ | (26,229) |  | $ | 20,628
Basic earnings / (loss) per share: |  |  |  |  |  |
Weighted average common shares outstanding, basic |  |  | 62,188,645 |  |  | 64,170,654
Basic earnings / (loss) per share |  | $ | (0.42) |  | $ | 0.32
Effect of dilutive securities: |  |  |  |  |  |
Dillutive effect of non vested shares |  |  | - |  |  | 298,206
Weighted average common shares outstanding, diluted |  |  | 62,188,645 |  |  | 64,468,860
Diluted earnings / (loss) per share |  | $ | (0.42) |  | $ | 0.32

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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